Date: Thu, 2 Mar 2000 10:47:45 -0700 (MST) From: "Ronald G. Minnich" <rminnich@lanl.gov> To: Glenn Johnson <gjohnson@nola.srrc.usda.gov> Cc: cluster@FreeBSD.ORG Subject: Re: Is there a cluster manager for FreeBSD that does job migration? Message-ID: <Pine.LNX.4.20.0003021043570.28423-100000@mini.acl.lanl.gov> In-Reply-To: <20000302092927.A73201@symbion.srrc.usda.gov>
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On Thu, 2 Mar 2000, Glenn Johnson wrote: > I am currently using FreeBSD-3.4 with clusterit-1.3 on a small 4 node > cluster. I have mpich and pvm installed for parallel programs. I need > to expand the capabilities of this cluster and add another 12 nodes > to it. I do not think that the current tools I have (clusterit and > GNQS) can meet the needs I have. The parallel part of the cluster is > not a problem but I need to set it up for High Throughput Computing as > the majority of the jobs are single processor jobs, but there are a > lot of them. The availability of the cluster will also be widened to > include other users at my facility besides myself. This means that a > cluster that presents itself to the user as a single machine would be > beneficial. Also, there will be some nodes on the cluster that will > be in and out of the cluster as they are called upon for other needs > periodically so the ability to move jobs between nodes is important. I'd look into PBS, that's what we use here and overall it's probably the best you're going to do. It has some pretty neat capabilities which I just learned about. For example, once you've scheduled the nodes you can rsh to them. You'll see why this matters if you look at my new home page and check out vex, the Vector EXecute tool. > but I do not think that would be the best tool. I came across some > references to something that Sarnoff had done but all of the links to it > are stale and therefore I could not really get any useful information on > that. That was me, and I've moved. The links should be to www.acl.lanl.gov/~rminnich. you can do everything in freebsd just as well as you can do in Linux. You lose some things -- some commercial tools such as PGI Fortran won't run on FreeBSD, you don't get giganet, etc. -- but you get the freebsd advantages, which are considerable. I'm doing Linux full time now, since that's what the DOE has picked, but I haven't forgot my good times using freebsd on 80 machines. BTW, the stuff on my web page does scale to 161 nodes -- I've tested that. So scaling on 16 nodes is quite good. ron To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-cluster" in the body of the message
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